plane curves

the following links direct to:

curves

  • right strophoid
  • cardioid

conics

  • tangents to a circle, from an exterior point
  • tangents common to two equal circles
  • tangents common to two different circles
  • interior tangents common to two different circles
  • ellipse, given its axes #01
  • ellipse, given its axes #02
  • tangent and normal to the ellipse
  • foci of a given ellipse
  • tangents to an ellipse, from an exterior point
  • tangent to an ellipse, given its direction